1. 听材料，回答小题。

Are you facing a situation that looks impossible to fix?<br />In 1969, the pollution was terrible along the Cuyahoga River near Cleveland, Ohio.<br />It was unimaginable that it could ever be cleaned up.<br />The river was so polluted that it actually caught fire and burned.<br />Now years later, this is one of the most outstanding examples of environmental cleanup.<br />But the river wasn't changed in a few days or even a few months.<br />It took years of work to reduce the industrial pollution and clean the water.<br />Finally, that hard work paid off and now the water in the river is cleaner than ever.<br />Maybe you are facing an impossible situation.<br />Maybe you have a habit that is driving your family crazy.<br />Possibly you drink too much or don't know how to control your credit card use.<br />When you face such an impossible situation, don't you want a quick fix and something to change immediately?<br />While there are amazing stories of instant transformation, most changes are gradual and require a lot of effort and work,<br />like cleaning up a polluted river. Just be patient.<br />Are you facing a situation that looks impossible to fix?<br />In 1969, the pollution was terrible along the Cuyahoga River near Cleveland, Ohio.<br />It was unimaginable that it could ever be cleaned up.<br />The river was so polluted that it actually caught fire and burned.<br />Now years later, this is one of the most outstanding examples of environmental cleanup.<br />But the river wasn't changed in a few days or even a few months.<br />It took years of work to reduce the industrial pollution and clean the water.<br />Finally, that hard work paid off and now the water in the river is cleaner than ever.<br />Maybe you are facing an impossible situation.<br />Maybe you have a habit that is driving your family crazy.<br />Possibly you drink too much or don't know how to control your credit card use.<br />When you face such an impossible situation, don't you want a quick fix and something to change immediately?<br />While there are amazing stories of instant transformation, most changes are gradual and require a lot of effort and work,<br />like cleaning up a polluted river. Just be patient.

1. （1） What happened to the Cuyahoga River in 1969?

   A . It was cleaned up. B . It was seriously polluted. C . It became the most outstanding river.
3. （2） How long did it take for the river to become clean?   

   A . A few months. B . Several years. C . A few days.
5. （3） What can make the river clean according to the speaker?   

   A . Hard work. B . Something imaginable. C . The control of using your credit card. 
7. （4） What shall we do when facing an impossible situation?   

   A . Wait for something to change. B . Imagine something outstanding. C . Just be patient and do something.